Hi guys. 2004 53 mondeo tdci head unit 6000. This is my first post so please be patient lol. My friend was trying to jump start my car the other day and put the red + wire on a bit of the engine above the alternator. (Not on the alternator directly above it at very top of the engine) Then there was smoke coming off the lead so he disconnected it. When I tried my stereo it was turned to max volume and I could only hear it if I put my head to the speakers. Would be great if some one can shed some light on it. Thanks kindly Andy